In April 2011, the United States experienced the largest and deadliest tornado outbreak in modern history. Known as the 2011 Super Outbreak, it produced over 360 tornadoes across 21 states over four days, claiming the lives of more than 320 people. April 27 was the most catastrophic single day, with over 200 tornadoes—including multiple EF-4 and EF-5 storms—devastating communities, particularly in Alabama, where Tuscaloosa and Hackleburg were hit hardest.